Arguments for sh_map_tien:
  
 Called sh_map_tien to create a GMT map.
 
 Usage: 
  
      sh_map_tien -ps <file> -o <options> -page <option> -color <option> 
 
      Required: 
 
        -ps  file     : Name of output postscript file
 
      Required if called from another script that will continue mapping (e.g. sh_plotvel):
 
         -c     
 
      Optional:   
 
        -o  options   : GMT projection options < size range borders > 
 
        -page  option : Page orientation   P for portrait (default),  L for landscape 
 
        -color option : yes or no (default)    
 
   Example:  sh_map_tien -ps tienmap.ps  -o -R22/44/30/42 -Jm0.3 -Bf1.0/f1.0WSen -color yes 
 
   Requirement:   The location of the maps on your system must be set as 'root_map'.
                  The default is '~/gg/maps' where 'gg' is an alias in your home    
                  directory pointing to the level above 'gamit' and 'kf'.